
Professional recording studio in Rockville, MD, run by an engineer with 30 years in the industry. All genres welcome. Credits include Doodle Bug (Digable Planets, Grammy Award winner), The Roots (Grammy Award winner), Ruste Juxx, The Artifacts, Freeway, DJ Pain 1, and many major artists.
Ja Rajeem — Recording, Mixing & Mastering Engineer | Scientific Sound Lab Studios, Rockville, MD
Welcome to Scientific Sound Lab Studios
Where Sound, Vision & Strategy Align
At Scientific Sound Lab Studios, we don’t just create — we engineer your entire artistic vision. Whether you're a musician, filmmaker, content creator, or brand visionary, we provide the tools, expertise, and guidance to take your project from concept to final cut.
🎵 Full-Service Audio & Music Production
From mixing and mastering to beat production and vocal tracking, we deliver high-quality sound with a signature edge. Whether you’re an indie artist or a label-backed act, we bring industry-grade engineering and creative integrity to every session.
Click the 'Contact' above to get in touch. Looking forward to hearing from you.
Endorse Ja Rajeem10 Reviews

From 90s Boom Bap to today's new wave, Ja has seen and done it all! Fantastic ear on all things sound with the technical expertise to bring your music HOME! Tell 'em TommyTea sent ya!

Ja is exactly who you contract with for a quality and polished sound. For someone I’ve known since the late ‘80s he has been entrenched in audio alchemy for several decades and you will over appreciate his contribution to your next project(s).

I worked with Ja to mix/master 4 albums when I was getting back to making music. I got the same feedback on every project about the quality s work. He’s always professional and timely. 1000% recommend him.

Working with Ja Rajeem has been a blessing in disguise. He really knows what he’s doing when it comes to music and sound. It’s almost like he treats it like it’s a science. I’ve been working with him for about a year now, and I love the sound and the quality that he has brought to my music. And what I especially like is he actually listens to what you are looking for and finds a way to make it happen. Definitely one of the best in the game!!

Salute to Ja Rajeem for helping artists bring their sound to life through mixing and mastering. Independent artists, tap in, check out his work, and connect with him about your next project! 💯

I worked with Jah since 2016 he actually was my roommate for 7 yrs we recorded 5 dope albums and a bunch of features his mixing and mastering is top tier. I recommended him to artist such as Cambatta Pace Won and a host of others.
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Looking to take your music to the next level? Don't just make music make a statement with Ja Rajeem.....thank me later

I’ve worked with Ja-Rajeem for over 15 years, recording multiple songs and collaborating on songwriting. I respect his musical ear, mixing and mastering skills, and ability to bring a polished sound to a project while preserving the artist’s vision. Beyond the music, his professionalism, structured business practices, loyalty, and progressive mindset set him apart. I highly recommend him for his craft, integrity, and commitment to excellence. Much respect!

Ja Rajeem is my go to for all my mixing and mastering needs. I have used his services for my last several projects and the sound is unparalleled. I was impressed by his skill set and ability to delivery a comprehensive product.

As a recording artist and the founder of The Menace Network, I understand how important quality sound is when it comes to creating professional music. Ja Rajeem brings the technical knowledge, attention to detail, and understanding of sound that artists need when bringing their vision to life. His dedication to his craft and commitment to quality are what make him someone worth working with. I definitely recommend checking out his mixing and mastering services.
I was the Mix and Mastering Engineer in this production
- play_arrowMAR the Goodson and DJ Pain 1 - No Pressure
- Mixing EngineerAverage price - $100 per song
- Beat MakerAverage price - $300 per song
- Podcast Editing & MasteringAverage price - $75 per podcast
- ProducerAverage price - $300 per song
- Production Sound MixerAverage price - $400 per day
Services:
Recording session (in-studio) — $50/hr, or 5 hours for $200
Mixing & mastering (remote) — $100 per track, 3-day turnaround
Mastering only (remote) — $25 per track, 2-day turnaround
- Neve preamps
- 1176 compressors
- Pro Tools
- Waves
- Universal Audio
- Logic Pro
- Reason
- MPC
- Serato
